1 Possible compatibility problems with earlier versions marked with '*'.
3 Fix endless loop in CQL parser with unbalanced ".
5 Use a more compact way to store MARC-8 conversion tables.
7 --- 2.0.16 2004/03/16 Debian only
9 Oleg Kolobov Fixed a bug in yaz_iconv regarding conversion to
12 Update CQL parser to use new CQL 1.1 modifiers for booleans and
19 Another fix for decoding of XML packed records.
23 Fixes for Chunked encoding. White space not ignored after length spec.
25 Update NS and use default NS for SRW diagnostic elements.
29 Implement ZOOM_resultset_cache_reset which resets record cache.
31 Implement ZOOM_resultset_sort which sorts a result set.
33 Implement chunked HTTP transfer.
35 For SSL, use -lssl -lcrypto on systems that don't have pkg-config.
39 Added member 'schema' to bend_explain_rr structure so that backend
40 can specify explain record identifier. Defaults to Zeerex 2.0.
42 Fix encoding of OID's of form 1.0.X. Bug introduced in 2.0.11.
46 * SRW/SRU 1.1 updates: updated diagnostic in srw.h to use uri instead
49 Added init command for yaz-client which sends "extra" init request.
51 Fixed two bugs in OID codec - ber_oidc. Throw error when encoding/decoding
52 bad truncated OID. Fix decoding of OID X.Y... when X=2 and Y>39.
54 Fixed a bug in ASN.1 compiler that caused Type-1 Operator codec to fail.
56 Make ZOOM error code for "invalid query".
58 Fixed compilation for SSL which wasn't properly enabled for all platforms.
62 For yaz.m4, allow second argument for YAZ_INIT to hold minimal version of
65 * SRW/SRU 1.1 updates. Diagnostic code now a URI.
67 Added option -p <file> to make Generic Frontend Server to write PID file.
69 Added option -D to put Generic Frontend Server in background on its own.
71 Make ZOOM C recognize option "password". If unset, "pass" is used
72 (for backwards compatibility).
74 Fixed a bug in Generic Frontend Server that could make it crash if a
75 client sets characterSetNegotation bit, but didn't pass negotiation stuff
78 New YAZ client command, zversion, that sets Z39.50 version (1,2,3..).
79 Must be issued before open, in order to be in effect.
81 --- 2.0.9-6 2004/01/12 Debian/Windows
83 Make the SRU server more picky WRT unknown params, etc.
85 Bug fix: ZOOM scan response didn't return displayTerm - when present.
87 New YAZ client command, options, that sets Z39.50 options.
89 New utility functions yaz_init_opt_{encode,decode} to encode/decode Z39.50
90 options from a string of tokens (one token for each option bit).
92 Update SRW diagnostic code messages.
94 --- 2.0.9-5 2004/01/07 Debian/Windows
96 Handle user defined stylesheet for SRW/SRU.
98 --- 2.0.9-4 2004/01/06 Debian/Windows
100 Fix bug in decoding of Content-Length.
102 --- 2.0.9-3 2004/01/06 Debian/Windows
104 Fix a bug with decoding of XML packed records.
106 --- 2.0.9-2 2004/01/05 Debian only
108 Allow empty ODR (NMEM=0) for odr_oiddup and odr_getoidbystr.
110 Fix bug in SRW/SRU diagnostics decoding.
114 Fixed bug in Generic Frontend Server which could drop records exceeding
115 preferred message size. Reported and fixed by Irina Dijour.
117 Fixed calculation of package size for structured records in Generic
118 Frontend Server. Reported and fixed by Irina Dijour.
120 Fixed namespace for SRW/SRU diagnostics.
122 Fixed SEGV in yaz-client that occured for HTTP connection errors.
126 * SRW/SRU 1.1. Since the Namespace has changed for SRW/SRU, it means that
127 this version is incompatible with version 1.0 and older YAZ SRW/SRU
130 CQL changes to reflect recent changes to the specification:
131 * Documentation talks about context sets instead of index sets.
132 * Documentation talks about indexes instead of qualifiers.
133 * The CQL-to-PQF transformer's configuration file now uses
134 "index.set.name = <attributes>" instead of the old form
135 "qualifier.set.name = <attributes>". (Both forms are still
136 understood but the latter is deprecated.)
137 * CQL terms with no explicit index specified are now interpreted as
138 cql.serverChoice instead of srw.serverChoice (which of course
139 behaves exactly the same.)
143 MARC conversion can now generate ISO2709 output in another
144 character set. yaz-marcdump uses this facility if you invoke it
147 Added missing C decl macros for include/yaz/{soap.h,srw.h,cql.h}, so that
148 functions from there can be used from C++.
152 Frontend server now transfers memory from decoded packages to stream
155 NMEM now clears freed blocks with 'Y' (hex 59) to force bad memory
156 references to show up.
158 ZOOM-C now supports standard ZOOM option names as described in v1.4 of
159 the ZOOM Abstract API. The older names for the same options are still
160 also supported for the benefit of old applications.
162 ZOOM-C supports "implementationId" and "implementationVersion" options
163 to go along with "implementationName". These allow the user code to
164 specify identification strings to be sent to servers.
165 Add OID for the new ExtLite attribute set.
167 Add OIDs for NACSIS-CATP, FINMARC2000 and MARC21-fin record-syntaxes,
168 as requested/supplid by Ere Maijala <ere@atp.fi>
170 For generic frontend server, reverse the order of
171 "toolkit-supplied / application-supplied" strings sent as implementationId,
172 Name and Version. Also, remove the spaces around the slash. This brings
173 the GFS in line with the behaviour of ZOOM-C on the client side.
175 Add function ZOOM_scanset_display_term.
177 yaz-client shows scan displayTerm if present.
179 Utility yaz-iconv is now installed by default along with the man page
182 Extend configure check for OpenSSL to use pkg-config where available (such
185 Incorporate patch by Morten Bogeskov which allows a Unix file socket
186 server to specify uid/gid/mask for socket using the format
187 unix:[user=uid,][group=gid,][umask=mask,]file=path
188 If file= is omitted the existing format is assumed, e.g.
190 in which case the mask is 0666 (rw for everybody).
192 Major restructure of YAZ source. All source in libyaz is in src directory.
193 Programs in client (yaz-client), ztest (yaz-ztest), zoom (zoom programs),
194 util (utility programs such as ASN.1 compiler, yaz-marcdump).
196 Added man page for utility yaz-marcdump (used to be called marcdump).
197 yaz-marcdump is installed by 'make install'.
199 Fixed a memory leak in Generic Frontend Server that occurred when decoding
200 of incoming package failed.
202 Fixed a potential DOS attack vulnerability in COMSTACK/ODR.
204 Change prototype of odr_perror: add const to message string.
206 New function yaz_log_reopen which reopens log file (for log rotate, etc.)
208 * Blocking parameter for COMSTACK cs_create is now a bit mask rather
209 than a blocking flag. Bit 0 is set for blocking, reset for non-blocking.
210 Bit 1 is set if cs_addrstr should avoid DNS lookup; reset for full
211 DNS lookup. There should not be any compatibility problems with this
212 assuming that blocking=1 or 0 is used.
214 Fix bad reference in UNIX comstack in function cs_addrstr.
216 Fix for compilation on AIX.
218 The generic front-end server (server/seshigh.c) now supports returning
219 Init diagnostics to the client in User-information-field, in
220 accordance with Z35.90 Implementor Agreement 5 (Returning diagnostics
225 Allow any CQL relation (not just all,any,exact,scr).
227 Fixes for OCLC UI ASN.1 to make it work with SilverPlatter targets
228 that features the same UI.
230 Implemented command update0 in YAZ client which is equivalent to
231 update but uses old of Ext Update ASN.1.
233 Use OID 1.2.840.10003.15.1000.81.1 for privately defined charsets
234 in charset negotiation. Added VAL_ID_CHARSET in oid.h.
235 Previously no OID was used for this info.
237 ZOOM uses smallSetUpperBound=1 instead of 0 for piggyback searches.
238 It apparantely upsets EBSCO Publishing IR Z39.50 Server which
239 returns 'malformed search term' otherwise.
241 SortResponse member resultCount now set to NULL in sort handler of
244 OPAC support ZOOM. ZOOM_record_get returns OPAC info (as XML) if
247 Add three new utility functions for translating OIDs between various
248 formats -- symbolic name such as "Usmarc", minus-1-terminated int
249 arrays and dotted strings such as "1.2.840.10003.9.5.1":
250 int *oid_name_to_oid(oid_class oclass, const char *name, int *oid);
251 char *oid_to_dotstring(const int *oid, char *oidbuf);
252 char *oid_name_to_dotstring(oid_class oclass, const char *name, char *oidbuf);
254 Reverted modifications for ES Update definition for z_IU0Update
255 (OID 1.2.840.10003.9.5.1 and 1.2.840.10003.9.5). The definition
256 is back to YAZ 2.0.2.
258 String value attributes for CCL parser.
260 Support for OCLC's locally registered "OCLC-UserInformation" PDU,
261 which their FirstSearch server returns in Init responses, sometimes
262 carrying useful diagnostic information when Init fails. This has the
263 OID 1.2.840.10003.10.1000.17.1 and is defined in the file
264 "z39.50/oclcui.asn", where its definition is somewhat different from
265 what OCLC document on their web-site, as required to interoperate with
268 Support for anonymous authentication in yaz-client. Use the command
271 * Fix the OID of the Index Data-local "admin" Extended Service from
272 1.2.840.10003.9.81.1 to 1.2.840.10003.9.1000.81.1. The omission of
273 the 1000, which indicates a locally-defined OID, was a mistake.
277 Fix CCL directive @case handling so that it affects string match for
278 both CCL keywords and qualifiers.
280 * ESFormat-Update updates. Packages with OID 1.2.840.10003.9.5.1 and
281 1.2.840.10003.9.5 are now handled by the same decoder z_IU0Update .
282 Decoder has been updated with ASN.1 changes as listed in
283 http://lcweb.loc.gov/z3950/agency/defns/updateES.html
284 Note that the "latest" DB Update, OID 1.2.840.10003.9.5.1.1 , handler
285 z_IUUpdate, remains unchanged.
287 ZOOM_record_get may now return a record in a specific character set.
288 For type use "form; charset=from[,to]" where form (render, xml, ..) ,
289 "from" is the character set of record as returned by target. "to" is
290 the character set to be returned. If omitted, "to" is UTF-8.
292 YAZ ASN.1 compiler renamed from yaz-comp to yaz-asncomp
294 New ODR utility, odr_getelement, which returns name of element for
295 which encoding/decoding failed.
297 Fixed ODR so that it returns error code OREQUIRED rather than ONONE
298 in cases where a required element was omitted.
300 Bug fix: some MARC8 sequences were not converted.
302 New ZOOM option "step" which specifies number of records to be
303 retrieved in one chunk. Used in conjunction with "start" and "count".
305 SRW support for yaz-client. Use scheme http: to use it, e.g.
308 yaz-client no longer does (un)intelligent character set conversions
309 by default. Can be enabled with charset and marc_charset commands.
311 xmalloc trace fix for 64-bit systems such as DEC alpha.
313 Solaris 2.6 compile fix.
315 New function, cql_strerror() translates SRW error codes, as returned
316 by cql_transform_error(), into human-readable English strings. Used
317 in yaz-client diagnostics when appropriate.
319 New CQL2RPN query-type for the command-line yaz-client, parses CQL and
320 converts it into a type-1 query which is sent to the server. This
321 makes CQL available for use with all Z-servers, as opposed to the tiny
322 minority that can handle CQL queries themselves.
326 New Debian package layout similar to the Redhat Package layout.
328 New ZOOM events ZOOM_EVENT_RECV_{RECORD,SEARCH} for receiving a record
329 and search result respectively.
333 Redhat package is now several packages: libyaz (runtime libraries),
334 libyaz-devel (development and documentation, and yaz (utility programs).
335 Package spec file by Morten Bøgeskov.
337 New member 'schema' in struct bend_fetch_rr which the name of requested
338 schema (SRW/SRU) for record (or NULL if none was given). The fetch
339 handler MAY set this to reflect the schema of the returned record.
341 New member 'display_term' in struct scan_entry. GFS now sets member entries
342 and allocates scan entries to be filled by user scan handler. In previous
343 version, entries member was allocated by the scan handler. That still works,
344 but the GFS will ignore member display_term - assuming it was NOT set by
345 the handler. The fact that the GFS now allocates the entries both allows
346 for new members and makes a scan handler easier to write.
348 Fix CQL lex buffer overflow.
350 SRW/SRU recordPacking. For SRW default recordPacking is string. For
351 SRU default recordPacking is string.
353 SRU protocol support for frontend server.
355 Fix compile bug for systems that have nl_langinfo but CODESET undefined.
357 Added missing PQF transform rules for <= and >= . Thanks to Peter Popovics.
359 Added scan for the ZOOM shell (zoomsh).
363 * String Identifers for Schemas (Amendment 5).
364 http://lcweb.loc.gov/z3950/agency/amend/am5.html
365 Old definition for schema
366 Odr_oid *schema; /* OPT */
371 Z_InternationalString *uri;
372 #define Z_Schema_oid 1
373 #define Z_Schema_uri 2
376 * resultCount parameter to Sort Response (Amendment 1).
377 http://lcweb.loc.gov/z3950/agency/amend/am1.html
379 Support for SRW 1.0 over HTTP. This is an optional feature and
380 requires libxml2 to operate. Enable SOAP by specifying --with-xml2
383 Generic frontend server supports HTTP/SOAP/SRW and Z39.50/BER
384 on the same port. SRW SearchRetrieveRequests are mapped
385 to bend_init,bend_search,bend_fetch,bend_close.
387 Z39.50 Query Type-104 added - to facilitate CQL within Z39.50.
389 CQL support. Source is directory 'cql'. CQL is supported in ZOOM
390 (both SRW and Z39.50) and the YAZ client (Z39.50 only).
392 ZOOM connections are SRW based if schem http is used for hostname
393 in connect, e.g. z = ZOOM_connection_new("http://myserver");
394 ZOOM_query may be of type CQL, e.g. ZOOM_query_cql(q, "dc.title=x");
396 CCL proximity operators !n, %n converts to PQF @prox 0 n 1 2 k 2
397 and @prox 0 n 0 1 k 2 respectively, meaning: exlusion=false,
398 distance=n, order=true/false, relation=le, prox unit=word. If
399 n is omitted, distance 1 is used.
401 Fixed problem with C compiler include path in wrong order.
403 For TCP/IP COMSTACK, set recv buffer to an appropriate "large" value
404 on Solaris. Patch from Ko van der Sloot.
406 New MARC decode API. All new functions operate on a yaz_marc_t
407 handle. The most important new functions are: yaz_marc_create,
408 yaz_marc_decode_{buf,wrbuf}, yaz_marc_destroy, .. to create handler,
409 decode and destroy respectively. Decoder can produce formats
410 MARC line, simple XML, OAI MARC and MARC XML (LoC). See
411 include/yaz/marcdisp.h.
413 YAZ Iconv utility now supports MARC8 decoding (marc8.c). Converts
414 to UTF-8, UCS-32, wchar_t or Latin-1.
416 * Prototypes for yaz_iconv_-functions moved to separate header
417 include/yaz/yaz-iconv.h.
419 Make a few private functions 'static' in unix.c. This prevents
420 duplicate unix_close in PHP with YAZ and imap. PHP Bug 20977.
422 For ZOOM connection, the options targetImplementation{Id,Name,Version}
423 are set when Init Response is received.
425 New function ZOOM_connection_error_x similar to ZOOM_connection_error
426 but returns diagnostic set as well.
428 New function yaz_strerror which is a portable wrapper for
429 strerror/strerror_r/GetLastMessage.
431 * ZOOM_record_get supports type "xml" in which case MARC XML (from LOC)
432 is returned for MARC. If type is "oai", then OAI MARC is returned.
434 Fix creation of lib/yaz-config so it works if srcdir != objdir. Patch
439 yaz_marc_decode uses OAI MARC as XML format for ISO2709 records.
441 Fix bad race conditions on SIGTERM and terminate gracefully in
444 Move retrieval (data1) module to Zebra since nobody seems to be
447 Add GRS-1 render for ZOOM using same format as yaz-client.
451 Added man pages: yaz-client(1), yaz-ztest(8), yaz(7), zoomsh(1).
453 Fix broken ESpec handling in data1 module.
455 SGML reader parses comments and makes them part of the data1 tree.
457 Added several type casts so that YAZ compiles as C++ code.
459 ZOOM didn't handle PDU encoding failures properly.
461 Added more Bib-1 diagnostics (approved extensions).
463 GNU configure: better check for iconv.
465 More portable use of accept, getpeername. Check for socklen_t. Use
466 int/size_t if socklen_t is not defined.
470 PQF parser rejects bad queries - including those with extra
471 characters in them. PQF parser used to silently ignore that.
472 Cleaner API for PQF added, which allows you to get detailed
473 error information for bad queries (see yaz/pquery.h).
475 Fixed bug in ZOOM_record_get for type "database".
477 Implemented mini iconv library supporting conversions between
478 UTF-8, UCS4, UCS4LE and ISO-8859-1. Implemented in util/siconv.c.
480 * Removed XML reader (d1_expat.c). It's part of Zebra instead.
484 Fixed ZOOM C record cache so that preferredRecordSyntax and
485 elementSetName is used to check for already fetched records.
489 Added three members in bend_initrequest structure to facilitate
490 character set negotiation.
492 Fixed a bug in frontend server that could cause indefinite
493 loops under rare conditions.
495 Revised character set utilities (charneg.h) so that encoding
496 UCS-4, UCSA-4, UTF-16 and UTF-8 are encoded non-privately.
498 For PQF, directive @term <type> sets term type for Scan/Search.
499 Here <type> is general, string, numeric, null. The term type
500 is inherited - just like @attr.
502 New call odr_set_charset that sets character set conversion for
503 international-strings on a ODR stream. Prototype is:
504 int odr_set_charset(ODR o, const char *to, const char *from);
505 The InternationalString is still represented as C string in YAZ
506 so native strings of type UTF-8, ASCII, etc. will work (UTF-16
507 won't). On the protocol level, you can use any encoding.
509 Support for UNIX sockets in ZOOM.
511 Solaris recv sometimes returns errno == ENOENT. It is treated as
512 EINPROGRESS. COMSTACK patch by Ko van der Sloot.
514 New COMSTACK of type UNIX Socket. Use "unix:/path" as address for
515 both client and server. Code by Morten Bøgeskov.
519 On Windows ZOOM functions are of type __stdcall rather than __cdecl, so
520 that they can be used directly from Visual Basic. You must recompile
521 your windows APP if you're using ZOOM.
523 Character Set and Language Negotiation(3) for ZOOM API and YAZ client.
524 Commands "lang" and "charset" sets language and character set respectively.
525 Options "lang" and "charset" is interpreted by the ZOOM API. Note, these
526 are not part of the official ZOOM spec) All is due to Oleg Kolobov.
528 Attributes from multiple CCL fields may be OR'ed rather than merged
529 using directive "@field or". Fields are still merged by default -
530 equivalent to "@field merge".
532 Fixed bug in ZOOM connect that occurred on OpenBSD (maybe others). Patch
535 Fixed bug in zget for parameter ExtendedServicesResponse.
541 Added PQF feature: '@attr type=value' may be written as '@type=value'.
543 Client displays USR.1:SearchResult-1 (hits per term).
545 Additional Search Info for search in Generic Frontend Server.
547 Fixed CCL parsing of "field=s".
549 WIN32 installer - using the excellent NSIS software from nullsoft.
551 Fixed CCL parsing of "field = - <number>".
553 Added function yaz_marc_decode that decodes MARC for line mode
554 display or XML (similar to that used by JZKit).
556 Fixed BER decoding of OPTIONAL CHOICE. The bug didn't affect the
557 Z39.50. But ISO/ILL was, however.
559 Added patch by Rustam T. Usmanov that implements Z39.50 duplicate
560 detection service (Z39.50-1995 Amendment 2) and Language Negotiation (3).
562 http://lcweb.loc.gov/z3950/agency/amend/am2.html
563 http://lcweb.loc.gov/z3950/agency/defns/charneg-3.html
567 New YAZ client features: Command completion and new commands:
568 push_command, set_apdufile, set_marcdump, set_cclfields, register_oid.
569 Code provided by Jacob Poulsen.
571 New call oid_trav, that visits all registered OIDs via callback.
573 Function ZOOM_record_get now returns const char pointer rather than
574 void pointer. It saves a lot of type casts.
576 For YAZ client, command "auth" now allows you to set authentication
577 in IdPass style. It is enabled when three tokens are given - order
578 is user, group and password.
580 Fix memory leaks in MARC record handling for ZOOM.
582 New option for YAZ client, -k <kilobytes> that sets
583 maximum record size. Similar to -k option for generic frontend
584 server and yaz-ztest.
586 More fixes for scan. Non-zero stepSize handled. OID's fixes.
588 Prefix query parser reports "fail" when bad attribute set is given.
590 Fix in MARC decoder. Proximity logging. Fix for attribute set
591 in scan handler for server. Patches by Shigeru Ishida.
593 SSL/COMSTACK updates. cs_rcvconnect completes SSL handshake. ZOOM
596 Configure option --with-openssl=<dir> now works when a directory is
597 specified. Patch provided by Morten Bøgeskov.
599 New option for YAZ client, -u <auth>, that sets authentication.
601 ZOOM fix: error information was sometimes "missing", since error
602 was cleared/reset too when it shouldn't.
604 ZOOM_record_get returns ISO2709 buffer when "raw" is given.
608 Scan for ZOOM API. New object ZOOM_scanset. New functions
609 ZOOM_connection_scan, ZOOM_scanset_size, ZOOM_scanset_term and
610 ZOOM_scanset_destroy.
612 New ZOOM function, ZOOM_connection_last_event, that returns type
613 of last event (such as "receive data", "send data", "apdu received",
616 New ZOOM option, schema, that specifies schema for retrieval.
618 New CCL feature. Qualifiers can be aliases for one or more
619 other qualifiers (if more than one is given, OR is used).
621 ZOOM uses named result sets if target supports it.
623 Two new YAZ client commands: . (dot, which sources a script of YAZ
624 client commands), and ! (to execute shell command.). Implemented
627 Working on Debian packages.
631 YAZ client enables named result sets only if target supports it.
633 *** ZOOM. Prefix for ZOOM definitions changed from Z3950_ to ZOOM_.
635 * ZOOM. Removed Z3950_connection_host. Use Z3950_connection_option_get
636 with key="host" to get same result.
638 * ZOOM. Added Z3950_record_clone and removed Z3950_resultset_get.
639 Function Z3950_resultset_record(s) returns references to records
640 "owned" by resultset. To become owner use Z3950_record_clone.
642 Function z_ext_record handles Extended Services. Thanks to
647 CCL Parser fix: ignore token comma when dealing with and-lists.
649 Documentation updates for COMSTACK.
651 * ZOOM changes. Query object renamed from Z3950_search to Z3950_query.
652 Changed prototype Z3950_records. For some functions, int parameters
653 were changed to size_t.
655 TCP/IP COMSTACK no longer uses getprotobyname to avoid memory leak
658 New MARC decode/display function, marc_display_exl, which properly rejects
659 non-ISO2709 records. YAZ client uses it.
663 Fix bug: local attribute set wasn't set correctly in PQF strings.
667 * Old Z39.50 codecs no longer supported.
669 Added ZOOM C binding. See http://zoom.z3950.org/
671 Renamed states for COMSTACKs to avoid confusion with events.
673 Implemented cs_look and proper cs_rcvconnect.
675 Fixed COMSTACK error that occurred on HPUX. Fix by Giannis Kosmas.
677 Configure detects POSIX threads on OpenBSD.
679 When sort flag 'i' was specified in yaz-client the caseSensitivy flag
680 was set to a wrong value. Thanks to Robert Sanderson for reporting this.
682 When error is returned from present handler, non-surrogate diagnostic
683 is returned in present response (and fetch handler is no longer called).
685 * Minor adjustments to pquery parser (PQF). Token characters may be
686 escaped by using backslash (C-style).
688 PQF parser allows string attribute values to be specified. For @attr,
689 non-numeric characters after the equal-sign are treated as strings
690 (e.g. @attr 9=title).
692 CCL trunction character may be defined (@truncation in file)
694 * function zget_ExtendedServicesRequest sets waitAction to
695 waitIfPossible (was wait).
697 Added cs_set_blocking to set change blocking mode of a COMSTACK. Thanks
700 CCL operator names may be set in field definition files (CCL_bibset).
701 See ccl/bib1 for an example.
703 Fixes in ASN.1 compiler for C++ compatibility.
705 * Renamed members "and" and "or" in struct Z_Operator to "op_and"
706 and "op_or" to avoid conflict with C++.
708 Fixed problem with GNU readline detection on Redhat 7.0.
710 Added step-size for Scan backend handler.
712 Fixed bug that made the frontend server crash when no attribute
713 set was specified for scan.
715 Front-end server automatically switches to original working directory
716 when installed as an NT service. Previously -w had to be specified to
719 Added extended attributes for retrieval module (data1), so that data1
720 records carry d1_readXML/SGML attributes. d1_read also supports
721 null-data rules ( <tag/>)
723 On UNIX when POSIX threads are available, a separate library libyazthread
724 is created. Programmers should link with that library and the yaz library
725 when using threads. The reason for the split was that some applications
726 on Linux, such as Apache, doesn't work well when using shared objects that
729 Added SSL support for the COMSTACK. You start yaz-client and yaz-ztest
730 (or any frontend server) in SSL mode by specifying ssl: followed by
731 address. Only tested on UNIX.
733 Added feature for CCL module. Virtual structure s=al or s=ol generates
734 and-list and or-list respectively instead of phrase search.
738 * Added prefix "yaz_" for the functions log_init.., log_file.. and
739 log_mask_str. This was done to avoid name conflicts with other libraries
740 (such as other PHP extensions).
742 Added raw OID member for preferred record syntax (request_format_raw)
743 and returned record syntax (output_format_raw) for backend fetch method.
745 Config file yaz-config now accepts options so that it returns specific
746 compile settings, etc. Thanks to Morten Bøgeskov <morten@bogeskov.dk>
748 Shared library support for UNIX using GNU libtool.
750 * Modified backend interface. Request/Response struct's replaced by
751 one read/write C struct. For example bend_fetchrequest and
752 bend_fetchresult have been replaced by single bend_fetch_rr struct.
753 Every handler - even search has to be registered in bend_init
754 handler. This means that the YAZ library no longer refers to
755 external functions and it makes it possible to make the whole
756 thing a single DLL/SO.
758 Added Segment handler for backend server.
760 Added Zmbol/Zebra administrative functions to YAZ client.
762 Threaded frontend server on UNIX (when POSIX Threads are available).
763 Starting the server with option -T enables multi-threading.
767 Added configure option --enable-comp/disable-comp to control use
768 of YAZ ASN.1 compiler. Use --disable-comp to use the old *coders
769 located in sub directory asn.
771 YAZ ASN.1 compiler renamed to yaz-comp in sub directory. It's installed
772 in ${exec_prefix}/bin along with the other programs yaz-client and
775 GNU automake used to maintain makefiles.
779 Changed retrieval module so that we can load records with no abstract
780 syntax defined. Tagpaths in these records are fully composed of string
783 Implemented ISO ILL protocol. Refer to stuff in sub directory ill.
787 On UNIX, the generated makefile now supports a proper 'make install'.
788 The prefix can be set via GNU configure to set the install location
789 (default is /usr/local).
791 * YAZ programs client and ztest were renamed to yaz-client and
792 yaz-ztest to avoid conflicts when users install YAZ in "standard"
793 locations, such as /usr/bin,/usr/local/bin,etc.
795 * YAZ Header files were moved from include to include/yaz. YAZ Header
796 files are referred to as include <yaz/log.h> rather than <log.h>.
797 The YAZ include path (-I ..) is therefore the same as before. Programmers
798 should update their #include statements or use -Ipath/include/yaz
799 instead. The main motivation for doing this change is that YAZ header files
800 can be installed in "standard" locations /usr/include,/usr/local/include
801 without introducing conflicts, since ALL YAZ header files are stored
802 in subdirectory yaz (under /usr/include for example).
804 Compilation of YAZ for WIN32 is now handled by an nmake-style makefile
805 rather than project/workspace files. We switched because project files
806 are incompatible between Visual C++ 5 and 6. Refer to windows.txt for
809 Changed name of logging function, logf, to yaz_log, to prevent name
810 clash with some math-log functions. The YAZ header log.h defines logf
811 to yaz_log (#define) so there should be no incompatibilities by this
814 Added bend_start/bend_stop handlers for server. These handler are
815 called on start/stop of server. For windows they are called whenever
816 a service is started/stopped.
818 * YAZ now auto-generates decoders/encoders for the Z39.50 protocol using
819 a fairly small ASN.1 compiler written in Tcl. The compiler is located
820 in util/yc.tcl. The auto-generated C code structures are, in a few
821 cases, incompatible with the old decoders. There are differences in the
822 following C structures Z_DiagRec, Z_External, Z_SortRequest, Z_SortResponse,
823 Z_AttributesPlusTerm, Z_ProximityOperator, Z_DefaultDiagFormat.
824 The preprocessor variable ASN_COMPILED is defined when the compiled
825 ASN.1 is being used. Encoder/decoder routines as well as the Z39.50
826 protocol ASN.1 is located sub directory <tt>z39.50</tt>. If you
827 wish to use the old encoders/decoders you can specify --disable-yc
830 Assigned OID for old DB Update (VAL_DBUPDATE0). Updated YAZ compiled
831 version so that it supports both new - and old version of DB Update
833 * Added 'name' parameter to ODR encoder/decoder routines to facilitate
834 pretty ODR print. Updated whole Z39.50 encoder/decoder to reflect the
835 change. The name parameter can be set to 0 in which no name is specified
836 for the construction. The macros odr_implicit and odr_explicit sets name
837 parameter to zero for the construction involved. New macros
838 odr_implicit_tag and odr_explicit_tag are similar to the others,
839 except that a name parameter is added. For programmers' that don't use
840 ODR they probably only need to change the call to z_APDU and z_External.
842 Added access control facility by interfacing the TCP wrapper library.
843 YAZ automatically attempts to find the TCP wrapper Library (-lwrap) and
844 tcpd.h on Unix systems. For the server, option -d<daemon> specifies the
845 name of the daemon and enables the access control as specified in
846 hosts.allow/hosts.deny. Refer to man pages tcpd(8) and hosts_access(5).
848 Fixed memory leak in ccl_find_str and ccl_qual_rm. Thanks to Hans van
849 den Dool <H.M.vdnDool@kub.nl>.
851 Added reference ID parameter to most functions in server API - refer
852 to backend.h. Thanks to Hans van den Dool <H.M.vdnDool@kub.nl>.
854 Changed name of ccl library to libccl.a (was ccl.a).
856 Fixed bug in decoder for Explain (Category TargetInfo).
858 Added support for GNU readline in client. Thanks to Jacob Poulsen
859 <ja7@dbc.dk>. GNU configure attempts to detect if readline is available.
861 * CHANGED DEFINITION OF ES: UPDATE (INCLUDING THE OID) to reflect the
862 new definition from the ZIG. NOTE THIS IF YOU HAVE AN UPDATE
863 IMPLEMENTATION! This change was made to the development version before
864 the ZIG decided to retract the amendment. If any users MUST be
865 compatible with the original Update definition, PLEASE CONTACT US, and
866 we will include a separate definition corresponding to the old Update
867 ES. Note that because of the change to the ASN.1 of the
868 TaskPackageRecordStructure we cannot define a single structure that
869 will support both versions.
871 * Added const modifier to buffer parameter for some ODR/BER encoding
872 routines: ber_dectag, ber_declen, odp_more_chunks, completeBER,
873 completeWAIS, odr_dumpBER.
875 Fixed bug in client.c which caused a crash when a scanResponse didn't
876 contain positionOfTerm.
878 * Fixed inconsistency in the ScanResponse/ListEntries protocol. This
879 * will cause an error in a client if a non-YAZ target sends both a
880 * list of Scan entries and non-surrogate diagnostics.
882 Retrieval module enhancements. Tag sets may be typed in the reference
883 to it. From the .abs-file the "tagset" directive takes a third optional
884 integer type for the tag set referenced. From a .tag-file the "include"
885 directive takes a third optional type as well. The old "type" directive
886 in the tag set itself is still recognized but acts as the default type
889 Backend interface change. Individual Scan terms returned from bend_scan
890 may also be tagged as Surrogate Diagnostics. Refer to struct scan_entry
891 in include/backend.h.
893 Retrieval module enhancements. Multiple tag sets and attribute sets may
894 be specified in abstract syntax specs. Revised the error/warning for
895 logging messages reported by the retrieval module when reading the
898 Object Identifier system (oid_..) changed. The API is backwards
899 compatible but the oid-routines now allocates new OID's when needed.
900 Raw OID's may be specified in oid_getvalbyname.
902 YAZ now uses GNU configure to generate Makefile(s).
904 * Minor changes in some of the member names of DeleteResultSetRequest and
905 DeleteResultSetResponse. See include/proto.h.
907 * Changed some C definitions regarding EXPLAIN record syntax (prt-exp.h)
908 and added member 'languages' in TargetInfo (which was missing).
910 Changed the way attribute sets are handled in the retrieval
911 module. These are now cached, just like the abstract syntaxes
914 Changed YAZ so that it links with compiled ASN.1.
916 Added Explain-schema definitions and mapping routines. The following
917 Explain categories have been implemented: AttributeDetails,
918 AttributeSetInfo, DatabaseInfo, CategoryList and TargetInfo.
920 Fixed minor bug in Windows version of Server Library.
922 --- 1.4pl2+ 1998/4/17 (Released with Zebra)
924 Added Extended Services to server (backend.h). Thanks to Charles Woodfield.
926 Added EXTERNAL: UNIverse Resource Report (non-standard).
928 Implemened odr_enum and odr_set_of functions to handle ASN.1 types
929 ENUMERATED and SET OF.
931 * Added 'const' to some of the char pointer arguments for the
932 functions, data1_read_node, data1_getelementbytagname,
933 data1_insert_taggeddata, data1_getesetbyname, data1_getelementbyname,
936 Fixed bug in data1_insert_taggeddata - the last_child member of
937 parent wasn't initialised.
939 * Changed data1_read_record and data1_read_node so that the supplied
940 "SGML"-buffer is read-only. In particular the resulting data1 - tree
941 doesn't refer to any parts of the "SGML"-buffer.
943 Fixed bug in server library (Windows version of statserv_remove).
945 * Changed code so that it compiles as C++. The type definition
946 of Odr_fun which is a member of Odr_arm was changed. The result is,
947 that an explicit typecast is needed for the fun pointer when
948 using Odr_arm - as in:
949 {1, -1, -1, Z_IdAuthentication_idPass, (Odr_fun)z_IdPass},
951 Updated TagSet-G and -M definitions (tagsetm.tag and tagsetg.tag).
953 Implemented the new structured date and time definition as approved
954 by the ZIG. Added schemaId element to the specificTag in Espec-1
955 (also approved at the last ZIG). Thanks to RVDM.
957 Added some Object identifiers (RVDM).
959 Changed the Update Extended Service (RVDM).
961 Added command "refid" to client which specifies referenceId for
962 the following requests.
964 Implemented extended service handling for server. See ztest.c
965 for an example as well as backend.h. New handlers are registerd
968 * Changed interface for sort in server.
970 Added new members to statserv_options_block. It allows a server
971 to read options from another source than just the command line. Thanks
972 to Charles Woodfield.
974 * Changed definition of Z_Triple in file prt-grs.h - member boolean
975 renamed to zboolean. Some C++ compilers complained about the name.
977 Minor changes to gils.abs. Added index 's' (sort) on title
978 and date/time-last-modified.
982 Fixed bug in server library regarding inetd mode (-i). This bug
983 was introduced by release 1.4.
987 Added sort facility in client and backend server interface.
989 Fixed problem with dependencies in Makefile(s).
991 Fixed bugs for encoders/decoders of extended services and
994 Implemented sub-tree feature for schemas. Sub-trees are
995 referenced in *.abs-files. See explain.abs for an example
996 of the use of this feature.
998 Modified bib1.att; local attributes for ANY didn't include
999 ANY itself (only affects use of the retrieval module).
1001 Fixed bug in plain SGML reader in function data1_read_node:
1002 tags with prefix "var" was incorrectly interpreted as variants.
1004 Added feature "sub-schemas" to enable references to - and definitions
1005 of - group of elements.
1007 * Removed member parent from type data1_element (in data1.h).
1009 Implemented function odr_nullval() that returns the value of
1012 * Removed member num_children from data1_node (in data1.h).
1014 Made NT service interface part of the server library. The
1015 function statserv_main uses the NT service when required and
1016 calls the statserv_start / statserv_close routines.
1018 Routine zget_SearchRequest and zget_PresentRequest fills
1019 resultSetName/Id member with "default" instead of "Default".
1021 Fixed memory leak in server. Request queue member wasn't freed.
1023 Fixed nmem_exit so that memory is freed.
1027 Revised the CCL parser utility to be thread safe.
1029 Added function, oid_ent_to_oid, to replace the function
1030 oid_getoidbyent, which is not thread safe.
1032 * Added nmem_init and nmem_exit to initialize and release
1033 NMEM resources. Function nmem_init should be called once in the
1034 initial thread before NMEM/ODR is used. statserv.c and client.c
1035 have been changed accordingly. The change was necessary to make
1036 NMEM thread safe. The NMEM memory pool is shared amongst threads
1037 in a process. Unix-based applications will still work fine without
1040 Added NT Services interface for the the Z39.50 (statserv) Server.
1041 Refer to the ztest.c source on the usage.
1043 Windows 95/NT port using MSVC5.0. Project files are included in the
1046 * Defined new 'global' handle for the retrieval (data1) system. The
1047 new handled, data1_handle, describes the state of the data1 system.
1048 This handle is passed as first argument to virtually all
1049 data1 related routines. The functions data1_create and data1_destroy
1050 creates and destroys a data1 handle respectively.
1052 Added ODR encode stream member to all backend request structures
1053 init, search, scan etc. This stream should be used to allocate all
1054 memory used for the response when thread safe operation is needed.
1056 Changed the comstack utility, cs_addstr, to be thread safe. The
1057 returned hostname string returned by the function is now part the
1060 Added comstack utility, cs_straddr, which replaces the tcpip_strtoaddr
1061 function. The cs_straddr takes a COMSTACK handle as argument, so this
1062 function must be used after cs_create and before bind/connect.
1063 This function is thread safe.
1065 Moved test server to 'ztest' directory - generic server code still
1066 in 'server' directory.
1068 Made prefix query (pquery.c) utility thread safe.
1070 Added new function modifier YAZ_EXPORT to 'export' public DLL
1071 functions when using windows (see include/yconfig.h).
1073 Added definitions to the OID database (util/oid.c) (RVDM).
1075 Added new BIB-1 diagnostic messages to the handler diagbib1_str.
1077 Added call to ccl_rpn_delete in client program.
1079 Added ODR argument to ccl_rpn_query and ccl_scan_query to provide
1080 release of RPN structure.
1082 Added support for C++, headers uses extern "C" for public definitions.
1083 With input from RVDM.
1085 In handling of SEQUENCE OF: Counter set to zero when SEQUENCE OF is absent.
1086 Thanks to Ronald van der Meer (RVDM).
1088 Added initializers (zget_ routines) for a number of PDUs. Thanks to RVDM.
1090 Added support for private extensions to the OID database
1091 (oid_setprivateoids()). Thanks to RVDM.
1093 Added optional, physical ANY (key replication)
1095 Fixed null-reference problem in GRS-1 output filter.
1097 Proximity operator added to Prefix Query Format (PQF).
1099 In test client command "base" accepts multiple databases.
1101 Fixed bug in cs_close stack that caused trouble with WINSOCK.
1105 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1107 Smallish bug-fixes in the new encoders/decoders (explain).
1109 Bug fixed in DeleteRequest.
1111 Fixed tagging bug of type 101 query in SearchRequest-Query PDU encoder/decoder.
1113 Fixed tagging bug in ResourceReportResponse PDU encoder/decode.
1115 Added SOIF syntax (using private OID for now) to retrieval module and client.
1117 Added Update extended service.
1119 Added SearchResult-1 additional info structure.
1121 Added optional CCL (ISO8777) interpreter as separate module. Available
1124 --- 1.2 1996/6/10 (1st anniversary release)
1126 Added Summary record syntax. Lightly tested.
1128 Added OPAC record syntax. Untested.
1130 Added ResourceReport service encoders/decoders. Untested.
1132 Fixed bug in z_Unit - wrong tagging on unitSystem.
1134 Fixed bug in the DiagRecs decoder.
1136 Added options for max PDU size and session timeout to frontend-server.
1138 Added documentation of query-language parsers and other supporting utilities.
1140 [frontend-server] Added Attribute set to the bend_scanrequest API.
1142 [frontend-server] NextResultSetPosition was sometimes set incorrectly when
1143 surrogate diagnostics were generated.
1145 [retrieval] Allow multiple local values for attribute.
1147 [retrieval] Allow multiple attributes per element in .abs files. index type.
1149 [retrieval] Added Summary tagset, abstract syntax, and d1-node/ASN filter.
1151 --- 1.1pl2 1996/4/10
1153 Minor changes, mostly specific to Zebra's requirements (retrieval)
1157 Repaired bug in frontend server when running multiple listening
1158 endpoints in dynamic mode.
1160 z_External() now won't break if a known, ASN.1 value comes encapsulated
1161 in an octet-string. The value will pass through unmodified in an Odr_oct.
1163 Added a bit of code to the demo client to decode & display
1164 ASN.1-structured records represented in the octet-aligned branch of
1165 the EXTERNAL CHOICE. Thanks to CAS for prodding us to finally do this.
1167 Added z_ext_getentbyref() to the ASN module. Doc updated.
1169 * Completed the SCAN definition in the ASN module. This may break SCAN
1170 code based on older YAZ-versions at compile-time. The fix is easy -
1173 * Added 'displayTerm' and OtherInformation to the TermInfo structure
1174 under the SCAN definition. Remember to initialize this, server-people.
1176 Comstack should now support the WAIS protocol in TCP/IP mode. Note
1177 that this does not extend to ODR and ASN.
1179 Comstack allows insertion of established socket (primarily for
1180 inetd-operation of servers). Doc updated.
1182 Front-end server can now start from the inetd in TCP mode. Doc
1185 --- 1.0pl4 1996/1/24
1189 Fixed small problem in SUTRS-filter. A newline was sometimes inserted before
1190 the rank and record number.
1192 Adjustments to the frontend server.
1194 Fixed diagnostic BER dumper. It ignored the file argument.
1198 Various changes to retrieval module.
1200 Changed the union discriminators of the protocol files from enums to
1201 ints paired with #defines.
1203 *Changed oident.class to oident.oclass to avoid a reserved word in C++
1206 *Changed operator in the RPN structure to 'roperator', again to avoid a
1209 Fixed problems in Explain decoders/encoders.
1211 --- 1.0pl2 1995/12/6
1213 Memory bug in log module fixed.
1215 --- 1.0pl1 1995/12/5
1217 Occasional malloc() of 0 bytes fixed in d1_espec.c.
1219 Bug in Explain DatabaseInfo module fixed.
1221 Some '\r' snuck into one or two of the ret'l config tables. A curse on Windows.
1225 The shift to v1.0 signals that we now consider the *core* functionality
1226 of YAZ reasonably stable (the core being more or less equivalent to
1227 Z39.50-1992). Some of the really nifty v3 stuff is still not heavily
1228 tested (Explain not at all - though that will happen soonish).
1230 Minor changes to code to support Windows port.
1232 Various minor changes after we're getting to use GRS-1 & co. more.
1234 Added Espec-1 format.
1236 Added VisibleString field body type to GRS-1. It is illegal acc. to my copy
1237 of the protocol and it cannot be selected when encoding (maps into 'string'
1238 when decoding). Needed to talk to some servers.
1240 Demo client can request simple element set names.
1242 Added Diagnostic Format encoders/decoders.
1244 Added simple Close handling to frontend server (no hooks for resource
1245 reporting yet), and demonstration client.
1247 Added cs_addrstr() command to COMSTACK to retrieve peer hostname/address.
1249 --- 1.0b3 1995/08/24
1251 Fixed bug in the frontend-server. The numberOfRecordsReturned field was
1252 handled incorrectly when records were requested in the searchResponse. This
1253 will only affect you if you use the frontend-server.
1255 Added GRS-1 encoders/decoders to the service-level API. Lightly tested.
1256 Test-client will ask for and print GRS1. Ztest will return dummy records
1259 Added Explain encoders/decoders to the service-level API. Untested.
1261 Added Extended Services: Item Order encoders and decoders to the Service-
1262 level API. Untested. We could use a recent copy of the pertinent bits
1263 of the ILL protocol to add those bits.
1265 Added diagnostic format 1 encoders/decoders to the service-level API.
1268 Moved pretty-printing of structure-wrappers ({..}) from odr_seq.c to
1269 odr_cons.c, which causes a more correct output.
1271 Fixed handling of searchRequest in frontend server. NextResultSetPosition
1272 was always set to 0 when no records were requested in the searchRequest.
1274 * Added better external-handling. This shouldn't harm old code that
1275 *encodes* externals. It can break code that looks for a
1276 'single-ASN1-type' representation, since those types that are known
1277 are now decoded immediately. Look at the SUTRS sample code in
1278 seshigh.c and client.c. Documentation updated.
1280 Handling of structured records in bend_fetchresponse. Length -1 marks
1281 structured record, type is deduced from format field.
1283 --- 1.0b2 1995/06/27
1284 Fairly quick maintenance release to add SUTRS support.
1286 Fixed handling of SUTRS records in the demonstration client.
1288 * Added format field to the bend_fetchrequest and bend_fetchresponce
1289 structures of the backend API (frontend server). When the record is
1290 returned, the value of the format field is mapped to an OID. The
1291 value VAL_SUTRS will also cause a slightly different ASN.1 packaging
1292 of the record. The special value VAL_NONE in the bend_request means
1293 that no specific format was requested by the client. Documentation
1294 updated accordingly. Test server (ztest) will return a fixed dummy
1295 SUTRS record if your client requests SUTRS.
1297 Documentation updated accordingly.
1299 You can now set external libraries and RANLIB support in the top-level
1303 First public release.